This trusted text successfully balances psychological, biological, and social aspects of human sexuality, integrating the latest research findings and providing a variety of tools to help students engage personally with core concepts. The author's balanced approach is evident in his ability to present various sides of controversial topics in a neutral voice, supported by sound research yet expressed in a lively and applied manner.The new ninth edition features a streamlined format, updated and reorganized content, several new figures and illustrations, and an increased emphasis on real student voices. Kelly comes with student and instructor access toSexSource Online, a unique collection of brief video clips on core concepts in sexuality.This paperback textbook is comprehensive yet manageable in a one-term course, and priced at 20% to 40% less than competing books. Related volumes of interest includeAnnual Editions: Human Sexuality, andTaking Sides: Clashing Views on Controversial Issues in Human Sexuality